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Determinants of plasma alkylresorcinol concentration in Danish post-menopausal women.

https://arctichealth.org/en/permalink/ahliterature140604
Source
Eur J Clin Nutr. 2011 Jan;65(1):94-101
Publication Type
Article
Date
Jan-2011
Author
R. Landberg
A. Kamal-Eldin
P. Aman
J. Christensen
K. Overvad
A. Tjønneland
A. Olsen
Author Affiliation
Department of Food Science, Swedish University of Agriculture Science, SLU, Uppsala, Sweden. rikard.landberg@lmv.slu.se
Source
Eur J Clin Nutr. 2011 Jan;65(1):94-101
Date
Jan-2011
Language
English
Publication Type
Article
Keywords
Biological Markers - blood
Bread
Denmark
Diet
Dietary Fiber - analysis
Female
Humans
Middle Aged
Multivariate Analysis
Postmenopause
Questionnaires
Regression Analysis
Resorcinols - blood
Secale cereale - chemistry
Abstract
Alkylresorcinols (AR), a group of phenolic lipids present in the outer parts of wheat and rye grain kernels, have been suggested as biomarkers of whole-grain wheat and rye intake. In this study, we investigated potential determinants of plasma AR concentration in a free-living population.
Non-fasting samples from post-menopausal women enrolled in the Danish Diet, Cancer and Health study (n = 360) were selected. Diet was assessed using a semi-quantitative food frequency questionnaires (FFQ) and the association between food items likely to contain AR and relevant non-dietary factors were studied by analysis of covariance models.
The median AR concentration was 78 nmol/l (interquartile range = 106.9 nmol/l). Intake of rye bread, identified as the main determinant, was associated with 87% higher plasma total AR concentration per 100 g of bread (95% confidence interval = 46-139%). About 8-12% of the total variation (depending on the AR homologue) in plasma AR concentration was explained by the selected dietary variables. At a nutrient level, total dietary fiber and cereal fiber were significantly associated with plasma total AR concentration (P = 0.05), but only ˜2% of the total plasma AR concentration was explained by the dietary fiber or cereal fiber intake.
In the studied population, AR plasma concentration was mainly affected by rye bread intake among investigated determinants.
PubMed ID
20859297 View in PubMed
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Development of a semiquantitative food frequency questionnaire to assess food, energy and nutrient intake in Denmark.

https://arctichealth.org/en/permalink/ahliterature24666
Source
Int J Epidemiol. 1991 Dec;20(4):900-5
Publication Type
Article
Date
Dec-1991
Author
K. Overvad
A. Tjønneland
J. Haraldsdóttir
M. Ewertz
O M Jensen
Author Affiliation
Institute of Social Medicine, University of Arhus, Denmark.
Source
Int J Epidemiol. 1991 Dec;20(4):900-5
Date
Dec-1991
Language
English
Publication Type
Article
Keywords
Adolescent
Adult
Aged
Aged, 80 and over
Denmark
Diet Records
Diet Surveys
Energy intake
Female
Food - statistics & numerical data
Humans
Male
Middle Aged
Nutrition Surveys
Questionnaires
Regression Analysis
Research Support, Non-U.S. Gov't
Abstract
Foods to be included in a Danish self-administered semiquantitative food frequency questionnaire were identified from food tables developed, together with data collected, for the survey 'Dietary habits in Denmark, 1985'. The questionnaire was to be used in a prospective study on diet, cancer and health, and the aim was to rank individuals with regard to intake of 19 different nutrients considered of prime importance in human carcinogenesis. The questionnaire for the dietary survey included 247 foods and recipes. From stepwise multiple regression analyses with the intake of each of the 19 nutrients as the dependent variable and the intake of the 247 foods and recipes as independent variables, the foods in the models explaining 90% of the between-person variability were considered for the final questionnaire. All relevant analyses were performed for the study group as a whole, for men and women separately, and in each gender for subgroups of energy intake. Taken together, the models explaining 90% of the between-person variability identified a total of 74 foods or recipes, which were important predictors of the intake of one or more of the nutrients considered. A few foods were excluded and a few foods were added to the final questionnaire based on common biological background information, and on information on foods providing important amounts of given nutrients, but which failed to contribute to regression analyses. The 92 foods and recipes, which were included in the final questionnaire provided altogether 81% of the average total supply of the nutrients.(ABSTRACT TRUNCATED AT 250 WORDS)
PubMed ID
1800428 View in PubMed
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